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  <title>Returns the database schema</title>

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</div><hr /><div id="function.px-get-schema" class="refentry">
 <div class="refnamediv">
  <h1 class="refname">px_get_schema</h1>
  <p class="verinfo">(PECL paradox &gt;= 1.0.0)</p><p class="refpurpose"><span class="refname">px_get_schema</span> &mdash; <span class="dc-title">Returns the database schema</span></p>

 </div>

 <div class="refsect1 description" id="refsect1-function.px-get-schema-description">
  <h3 class="title">说明</h3>
  <div class="methodsynopsis dc-description">
   <span class="type">array</span> <span class="methodname"><strong>px_get_schema</strong></span>
    ( <span class="methodparam"><span class="type">resource</span> <code class="parameter">$pxdoc</code></span>
   [, <span class="methodparam"><span class="type">int</span> <code class="parameter">$mode</code><span class="initializer"> = 0</span></span>
  ] )</div>

  <p class="para rdfs-comment">
   <span class="function"><strong>px_get_schema()</strong></span> returns the database schema.
  </p>
 </div>


 <div class="refsect1 parameters" id="refsect1-function.px-get-schema-parameters">
  <h3 class="title">参数</h3>
  <p class="para">
   <dl>

    
     <dt>
<em><code class="parameter">pxdoc</code></em></dt>

     <dd>

      <p class="para">
       Resource identifier of the paradox database
       as returned by <span class="function"><a href="function.px-new.html" class="function">px_new()</a></span>.
      </p>
     </dd>

    
    
     <dt>
<em><code class="parameter">mode</code></em></dt>

     <dd>

      <p class="para">
       If the optional <em><code class="parameter">mode</code></em> is
       <strong><code>PX_KEYTOLOWER</code></strong> or
       <strong><code>PX_KEYTOUPPER</code></strong> the keys of the returned array
       will be converted to lower
       or upper case. If <em><code class="parameter">mode</code></em> is 0 or not passed at all,
       then the key name will be identical to the field name.
      </p>
     </dd>

    
   </dl>

  </p>
 </div>


 <div class="refsect1 returnvalues" id="refsect1-function.px-get-schema-returnvalues">
  <h3 class="title">返回值</h3>
  <p class="para">
   Returns the schema of a database file as an associated array. The key name
   is equal to the field name. Each array element is itself an associated
   array containing the two fields <em>type</em> and
   <em>size</em>. <em>type</em> is one of the constants in
   table <a href="paradox.constants.html#paradox.table-fieldtypes" class="link">Constants for field
   types</a>. <em>size</em> is the number of bytes this field
   consumes in the record. The total of all field sizes is equal to the
   record size as it can be retrieved with <span class="function"><a href="function.px-get-info.html" class="function">px-get-info()</a></span>.
  </p>
 </div>


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